Remove the redundant --platform from the Dockerfile

Signed-off-by: Leandro Lucarella <luca-frequenz@llucax.com>

.github/containers/test-installation/Dockerfile

@@ -4,7 +4,7 @@
 # This Dockerfile is used to test the installation of the python package in
 # multiple platforms in the CI. It is not used to build the package itself.
 
-FROM --platform=${TARGETPLATFORM} python:3.11-slim
+FROM python:3.11-slim
 
 RUN apt-get update -y && \
     apt-get install --no-install-recommends -y \

RELEASE_NOTES.md

@@ -28,6 +28,7 @@
 * Added a new default option `asyncio_default_fixture_loop_scope = "function"` for `pytest-asyncio` as not providing a value is deprecated.
 * The migration script is now written in Python, so it should be (hopefully) more compatible with different OSes.
 * Disable more `pylint` checks that are also checked by `mypy` to avoid false positives.
+* Remove the redundant `--platform` from the testing dockerfile.
 
 ## Bug Fixes
 

cookiecutter/migrate.py

@@ -166,6 +166,17 @@ def main() -> None:
 
     # Add new pylint checks
     add_pylint_checks()
+    print("=" * 72)
+
+    # Remove redundant --platform from the dockerfile
+    dockerfile = Path(".github/containers/test-installation/Dockerfile")
+    print(f"{dockerfile}: Removing redundant --platform.")
+    if dockerfile.is_file():
+        replace_file_contents_atomically(
+            dockerfile, "--platform=${TARGETPLATFORM} ", ""
+        )
+    else:
+        print(f"{dockerfile}: Not found.")
 
     # Add a separation line like this one after each migration step.
     print("=" * 72)

cookiecutter/{{cookiecutter.github_repo_name}}/.github/containers/test-installation/Dockerfile

@@ -5,7 +5,7 @@
 # This Dockerfile is used to test the installation of the python package in
 # multiple platforms in the CI. It is not used to build the package itself.
 
-FROM --platform=${TARGETPLATFORM} python:3.11-slim
+FROM python:3.11-slim
 
 RUN apt-get update -y && \
     apt-get install --no-install-recommends -y \

tests_golden/integration/test_cookiecutter_generation/actor/frequenz-actor-test/.github/containers/test-installation/Dockerfile

@@ -3,7 +3,7 @@
 # This Dockerfile is used to test the installation of the python package in
 # multiple platforms in the CI. It is not used to build the package itself.
 
-FROM --platform=${TARGETPLATFORM} python:3.11-slim
+FROM python:3.11-slim
 
 RUN apt-get update -y && \
     apt-get install --no-install-recommends -y \

tests_golden/integration/test_cookiecutter_generation/api/frequenz-api-test/.github/containers/test-installation/Dockerfile

@@ -3,7 +3,7 @@
 # This Dockerfile is used to test the installation of the python package in
 # multiple platforms in the CI. It is not used to build the package itself.
 
-FROM --platform=${TARGETPLATFORM} python:3.11-slim
+FROM python:3.11-slim
 
 RUN apt-get update -y && \
     apt-get install --no-install-recommends -y \

tests_golden/integration/test_cookiecutter_generation/app/frequenz-app-test/.github/containers/test-installation/Dockerfile

@@ -3,7 +3,7 @@
 # This Dockerfile is used to test the installation of the python package in
 # multiple platforms in the CI. It is not used to build the package itself.
 
-FROM --platform=${TARGETPLATFORM} python:3.11-slim
+FROM python:3.11-slim
 
 RUN apt-get update -y && \
     apt-get install --no-install-recommends -y \

tests_golden/integration/test_cookiecutter_generation/lib/frequenz-test-python/.github/containers/test-installation/Dockerfile

@@ -3,7 +3,7 @@
 # This Dockerfile is used to test the installation of the python package in
 # multiple platforms in the CI. It is not used to build the package itself.
 
-FROM --platform=${TARGETPLATFORM} python:3.11-slim
+FROM python:3.11-slim
 
 RUN apt-get update -y && \
     apt-get install --no-install-recommends -y \

tests_golden/integration/test_cookiecutter_generation/model/frequenz-model-test/.github/containers/test-installation/Dockerfile

@@ -3,7 +3,7 @@
 # This Dockerfile is used to test the installation of the python package in
 # multiple platforms in the CI. It is not used to build the package itself.
 
-FROM --platform=${TARGETPLATFORM} python:3.11-slim
+FROM python:3.11-slim
 
 RUN apt-get update -y && \
     apt-get install --no-install-recommends -y \